Jeep 2007 wrangler Owner's Manual page 421

Miles
(Kilometers)
Change the engine oil and engine oil filter, if not
replaced at 3 months.
Rotate the tires.
Inspect the engine air filter element, replace if
necessary.
Inspect the PCV Valve, and replace if necessary.
Inspect the brake linings.
Drain and refill the front and rear axle fluid.
Inspect the manual transmission fluid, add as nec-
essary.
Inspect the transfer case fluid, add if necessary.
Clean and lubricate soft top zippers (if equipped).
18,000 21,000
(30 000) (35 000)
X X
X
X X
I n f o r ma t i o n P r o v i d e d b y :
SCHEDULE "B" 421
24,000 27,000 30,000
(40 000) (45 000) (50 000)
X X
X
X
X X
M
A
I
N
T
E
X
N
A
N
X
C
X
E
S
X
C
H
E
X
D
U
X
L
E
X
S
8
X